What is the best and most effective way to reduce unwanted hair, i am so concious and tried many expensive things but nothing seems to help.

Electrolysis : Electrolysis is slow but dependable. Laser hair removal requires multiple treatments but is also very effective. Find a state of the art machine made in the past year and purchase a plan that covers several sessions per year. One third of hairs are in resting or telogen phase at any time. Those hairs need to grow out to be able to be treated. Several treatments will therefore be needed.